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DIY Toilet Buying Guide

Best Toilets for Easy Installation: DIY-Friendly Picks

Installing a toilet yourself saves $150 to $300 in labor costs. These models ship with hardware, clear instructions, and standard dimensions that make the job manageable for a careful DIYer in a single afternoon.

Why Trust Best Flushing Toilets

Research updated June 2026.

Quick Answer

The TOTO Drake Two-Piece is the top DIY-friendly pick: it ships with every bolt and washer included, clears a standard 12-inch rough-in, weighs a manageable 80 lbs in two sections, and earns a MaP score of 1,000 grams with a single 1.28 GPF flush. A confident beginner can complete installation in 60 to 90 minutes.

Replacing a toilet is one of the most cost-effective plumbing projects a homeowner can take on. Unlike a faucet swap, which might mean wrestling with supply-line angles in a cabinet, a toilet replacement follows a predictable sequence: shut off the water, disconnect the supply line, remove wax ring, set the new bowl, connect the tank (on a two-piece), attach the seat, and restore water. The job typically takes 60 to 120 minutes with basic hand tools.

The difficulty, however, varies dramatically by model. Some toilets arrive with vague instructions, incomplete hardware kits, or a one-piece form factor that turns what should be a two-person lift into a code-blue situation. The eight picks below were chosen specifically because they reduce installation friction: clear manuals, included hardware, standard rough-in dimensions, sensible weight distribution, and enough owner-reported install reviews to confirm the experience is repeatable.

All eight also clear EPA WaterSense certification (1.28 GPF or less) and return respectable MaP scores. For a broader ranking that prioritizes raw flushing power rather than install ease, see our guide to the best flushing toilets. For a step-by-step walkthrough of the process itself, our toilet installation guide covers rough-in measurement, wax ring selection, and proper torque for tank bolts.

Quick Comparison

Model Type GPF MaP Score Bowl Weight Rough-In WaterSense
TOTO Drake Two-Piece Two-piece 1.28 1,000 g ~55 lbs 12" Yes
American Standard Cadet 3 Two-piece 1.28 1,000 g ~45 lbs 12" Yes
Kohler Highline Classic Two-piece 1.28 900 g ~50 lbs 12" Yes
American Standard Champion 4 Two-piece 1.6 1,000 g ~48 lbs 12" No
Woodbridge T-0001 One-piece 1.28 / 0.8 800 g ~79 lbs 12" Yes
Swiss Madison Sublime II One-piece 1.28 / 0.8 750 g ~73 lbs 12" Yes
TOTO Entrada Two-Piece Two-piece 1.28 800 g ~44 lbs 12" Yes
Gerber Viper Two-Piece Two-piece 1.28 1,000 g ~46 lbs 12" Yes
#1
Best Overall

TOTO Drake Two-Piece Elongated Toilet (CST744SL)

4.7 Best for: First-time DIYers who want maximum performance

The TOTO Drake has been the benchmark for DIY-friendly performance for over a decade because TOTO ships it with a complete hardware kit, a legible multi-step installation poster, and a bowl that splits away from the tank to keep both pieces under 60 lbs.

Flush Volume1.28 GPF
MaP Score1,000 g
Bowl Height15" (standard)
Rough-In12 inches
WaterSenseYes
Pros
  • MaP maximum 1,000 gram score on 1.28 GPF
  • Complete hardware kit with tank bolts, washers, and wax ring
  • TOTO's G-Max flushing system with 3-inch flush valve
  • Bowl and tank ship separately, keeping each piece manageable
  • EPA WaterSense certified
Cons
  • Standard height (15") may not suit users who prefer comfort height
  • Exposed trapway means more surface to clean

The Drake uses TOTO's G-Max flushing system, which pairs a 3-inch flush valve with a large 2-1/8-inch trapway. That combination achieves a perfect 1,000-gram MaP score while using only 1.28 gallons per flush. Installers report that the tank-to-bowl bolts are pre-threaded through the tank, which eliminates the fumbling that plagues some competing models.

Owner reviews on major retail platforms consistently highlight how closely TOTO's installation instructions track to the physical toilet. The bolt positions match the diagram, the supply line connection point is accessible, and the tank seats firmly on the bowl without requiring adjustment. For a DIYer installing their first toilet, this predictability is arguably more valuable than any single technical feature.

Expert Take

The Drake's documentation quality is unusual at this price tier. TOTO invests noticeably in its printed instructions, and the G-Max system's large 3-inch flush valve means you are unlikely to fight a weak or incomplete flush once the toilet is set. This is the model plumbers recommend to handy homeowners who ask what to buy before attempting their first DIY install.

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Bottom Line: The TOTO Drake is the most consistently DIY-friendly toilet available, combining a perfect MaP score with TOTO's characteristically thorough installation documentation.
#2
Best Budget Pick

American Standard Cadet 3 Two-Piece Toilet

4.6 Best for: Budget-conscious DIYers replacing a builder-grade toilet

American Standard's Cadet 3 earns a MaP score of 1,000 grams at 1.28 GPF and consistently appears at the lower end of mid-range pricing, making it a strong value pick for rental properties or secondary bathrooms where installation simplicity matters as much as build quality.

Flush Volume1.28 GPF
MaP Score1,000 g
Bowl Height16.5" (Right Height)
Rough-In12 inches
WaterSenseYes
Pros
  • Perfect MaP 1,000-gram score
  • Comfort Height (16.5") standard on most configurations
  • Fully glazed 2-3/8-inch trapway resists clogging
  • Hardware kit typically included
  • EverClean surface inhibits mold and mildew growth
Cons
  • Some SKUs ship without a wax ring, requiring a separate purchase
  • Seat not always included depending on configuration

The Cadet 3's standout installation feature is the flush valve, which American Standard pre-assembles into the tank. Homeowners do not need to insert or seat the valve themselves, eliminating one of the most common sources of post-installation leaks for DIYers. The tank bolts are also accessible from above rather than requiring a hand reach up into the tank from below.

American Standard's Right Height bowl (16.5 inches from floor to seat) is standard on most Cadet 3 configurations, which benefits taller users and aging-in-place situations. The EverClean surface finish uses an antimicrobial agent bonded to the vitreous china to slow microbial growth on the bowl surface.

Expert Take

At the intersection of installation ease and verified flushing performance, the Cadet 3 is the go-to for rental property owners replacing toilets across multiple units. The pre-assembled flush valve saves meaningful time when you are doing five or six installations in a single day.

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Bottom Line: The Cadet 3 punches above its price point with a perfect MaP score, a pre-assembled flush valve, and enough real-world installs to confirm the experience is genuinely beginner-friendly.
#3
Best Clog Fighter

American Standard Champion 4 Two-Piece Toilet

4.6 Best for: High-traffic bathrooms where clog prevention is the priority

The Champion 4 carries American Standard's widest trapway at 2-3/8 inches and a 4-inch flush valve, which together move waste more aggressively than nearly any residential gravity-feed toilet available, making it a practical DIY pick when clog history has been a problem.

Flush Volume1.6 GPF
MaP Score1,000 g
Trapway2-3/8 inches
Rough-In12 inches
WaterSenseNo (1.6 GPF)
Pros
  • Widest class trapway reduces clogging dramatically
  • 4-inch flush valve generates exceptional flush velocity
  • MaP 1,000-gram score confirms bulk waste capacity
  • Two-piece keeps weight manageable for solo install
  • Speed Connect tank-to-bowl attachment simplifies assembly
Cons
  • 1.6 GPF does not qualify for EPA WaterSense
  • Uses slightly more water per flush than HET alternatives

The Champion 4's Speed Connect tank-to-bowl system is a meaningful DIY advantage: a mounting system with three bolts and a self-adjusting coupling simplifies alignment and reduces the chance of a cross-threaded connection. This feature alone accounts for many positive owner installation reviews on the model.

The tradeoff is water usage: at 1.6 GPF, the Champion 4 uses 25 percent more water per flush than a WaterSense-certified 1.28 GPF model. In areas with rebate programs tied to EPA WaterSense certification, this distinction affects whether the toilet qualifies for utility rebates. For homes on municipal water where clog prevention is the overriding concern, the extra 0.32 GPF is generally considered acceptable.

Expert Take

The Champion 4 is the correct choice when replacing a toilet in a household that has routinely dealt with clogs using their current fixture. The 4-inch flush valve and 2-3/8-inch trapway represent the widest passage available in a residential gravity toilet, and the Speed Connect system makes the tank-to-bowl assembly straightforward enough for a first-time installer.

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Bottom Line: The Champion 4 is the most clog-resistant two-piece toilet available at this tier, and its Speed Connect assembly system makes it easier to install correctly on the first attempt.
#4
Best Entry-Level

TOTO Entrada Two-Piece Toilet (CST244EF)

4.4 Best for: Budget TOTO buyers who want reliable quality without the premium

The TOTO Entrada brings TOTO's manufacturing standards and documentation quality to the entry-level segment, offering a 1.28 GPF WaterSense-certified flush with an 800-gram MaP score in a two-piece design that most reviewers report installing without professional help.

Flush Volume1.28 GPF
MaP Score800 g
Bowl Height15" (standard)
Rough-In12 inches
WaterSenseYes
Pros
  • TOTO's well-regarded installation documentation
  • EPA WaterSense certified at 1.28 GPF
  • Two-piece keeps individual component weight low
  • Standard 12-inch rough-in fits most bathroom layouts
  • Lower price point than the Drake while sharing the TOTO quality standard
Cons
  • MaP score of 800 g is lower than the Drake's 1,000 g
  • Standard height bowl may not suit users needing ADA-compliant comfort height

The Entrada's E-Max flushing system uses a 2-inch glazed trapway and a 2-inch flush valve. While this is a step down from the Drake's 3-inch valve and 2-1/8-inch trapway, the 800-gram MaP rating still represents solid performance for a single-user or light-use bathroom. TOTO's quality control on the vitreous china surface ensures the bowl finish is consistent and free of the micro-pitting that can make cheaper toilets difficult to clean over time.

For homeowners upgrading from an older 3.5 GPF or 5 GPF fixture, even the Entrada's 800-gram performance at 1.28 GPF will represent a dramatic improvement in both water consumption and flush reliability. The installation experience inherits TOTO's documentation standards, meaning the hardware kit contents align with what the instructions illustrate.

Expert Take

The Entrada is the correct choice when budget is the primary constraint but you still want the installation confidence that comes with TOTO's documentation and quality control. It handles typical residential use without issue. Step up to the Drake if the bathroom serves a larger family or sees heavy daily traffic.

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Bottom Line: The Entrada delivers TOTO's installation-documentation quality and EPA WaterSense efficiency at a more accessible price, trading some MaP performance for a lower cost of entry.
#5
Best Kohler Pick

Kohler Highline Classic Two-Piece Toilet (K-3493)

4.4 Best for: Homeowners who prefer Kohler's parts ecosystem for long-term maintenance

The Kohler Highline Classic is one of the most widely sold toilets in North America, which translates to an enormous aftermarket ecosystem for replacement parts and decades of published installation guides available online.

Flush Volume1.28 GPF
MaP Score900 g
Bowl Height16.5" (comfort height available)
Rough-In12 inches
WaterSenseYes
Pros
  • Widespread parts availability at hardware stores nationwide
  • 900-gram MaP score for reliable single-flush performance
  • EPA WaterSense certified
  • Class Five flushing technology with canister flush valve
  • Available in multiple bowl heights and configurations
Cons
  • Canister flush valve requires specific replacement parts (not generic)
  • 900 g MaP is behind the top performers at this price

Kohler's Class Five flushing system uses a canister-style flush valve that opens wider than a traditional flapper, which is the primary reason the Highline achieves a 900-gram MaP score at 1.28 GPF. The canister design is also what requires Kohler-specific replacement parts, so long-term owners need to keep the model number accessible for ordering the correct flapper equivalent.

The Highline's strongest DIY argument is parts ubiquity. Whether a fill valve or seat hinge fails three years after installation, Kohler replacement components are stocked at hardware stores in nearly every major market. For homeowners who plan to maintain the toilet themselves long-term, this serviceability is a genuine advantage over less common brands. For more on how Kohler stacks up against its main competitor, see the Kohler vs American Standard comparison.

Expert Take

The Highline is the right pick when parts availability and brand familiarity matter more than achieving the highest possible MaP score. Kohler's nationwide parts distribution means that even in a rural area, a hardware store within driving distance is likely to stock fill valve and flapper replacements that fit this model.

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Bottom Line: The Kohler Highline Classic is the most serviceable toilet on this list, with parts available at hardware stores nationwide and a 900-gram MaP score that handles typical household demands.
#6
Best Modern One-Piece

Woodbridge T-0001 Dual Flush One-Piece Toilet

4.3 Best for: Remodels where a sleek, seamless look is the design goal

The Woodbridge T-0001 offers the clean skirted profile of a much more expensive toilet at a mid-range price, and despite being a one-piece, its dual-flush button mechanism involves no in-tank plumbing assembly, simplifying installation compared to traditional flapper-based designs.

Flush Volumes1.28 / 0.8 GPF
MaP Score~800 g (full flush)
Bowl Height16.5" (comfort height)
Rough-In12 inches
WaterSenseYes
Pros
  • Skirted trapway for a seamless, modern appearance
  • Dual flush saves additional water on liquid-only use (0.8 GPF)
  • Soft-close seat included in the box
  • One-piece means no tank-to-bowl connection to seal
  • WaterSense certified on full flush
Cons
  • At approximately 79 lbs, one-piece weight requires a second person for safe positioning
  • Skirted design makes flange alignment slightly less forgiving than exposed trapway

One-piece toilets eliminate the tank-to-bowl gasket connection, which is one of the most common sources of between-tank and bowl leaks. For a DIYer, that means fewer water connections to worry about. The Woodbridge T-0001 also arrives with a soft-close seat pre-installed, removing the seat-attachment step entirely. The dual-flush tower mechanism inside the tank is a sealed unit that requires no adjustment on installation.

The weight consideration is real: at 79 lbs for the one-piece unit, this is not a solo lift for most people. Woodbridge recommends a two-person installation, and the tile-to-wax-ring positioning step benefits from having a helper to hold the toilet level while the installer tightens the bolts. Plan for 90 to 120 minutes with two people. See the one-piece vs two-piece comparison for a full breakdown of the tradeoffs.

Expert Take

The Woodbridge T-0001 makes sense for a bathroom remodel where appearance is a priority. The skirted design that would cost significantly more on a TOTO or Kohler unit arrives here at a noticeably lower price. Plan for a two-person installation to manage the weight safely.

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Bottom Line: The Woodbridge T-0001 delivers a modern skirted profile with a soft-close seat included and a simplified dual-flush tower mechanism that requires no in-tank assembly adjustment.
#7
Best Sleek One-Piece

Swiss Madison Sublime II One-Piece Toilet (SM-1T257)

4.2 Best for: Contemporary bathrooms where wall-to-wall clean lines are the design brief

Swiss Madison's Sublime II brings a fully skirted, elongated one-piece profile with top-mounted dual-flush buttons that are easier to operate than side-mounted levers, and the unit ships with a pre-mounted slow-close seat and all required hardware.

Flush Volumes1.28 / 0.8 GPF
MaP Score~750 g (full flush)
Bowl Height16.5" comfort height
Rough-In12 inches
WaterSenseYes
Pros
  • Fully concealed trapway and tank for a continuous curved silhouette
  • Top-flush dual buttons ergonomically positioned
  • Slow-close seat included and pre-installed
  • All hardware included; no supplemental shopping required
  • WaterSense certified at 1.28 GPF full flush
Cons
  • At ~73 lbs, still requires a second person for bowl positioning
  • Swiss Madison parts availability is thinner than TOTO or Kohler
  • MaP at 750 g is on the lower end for high-use bathrooms

The Sublime II's top-flush button design is an ergonomic advantage over traditional handle levers, especially for users with arthritis or reduced grip strength. The larger button surface area requires less force to activate, and the dual-button layout (small for 0.8 GPF, large for 1.28 GPF) is intuitive without requiring instructions for houseguests.

Swiss Madison's customer support and parts availability lag behind TOTO and Kohler, which is a consideration for long-term ownership. The flush mechanism uses a standard tower design that is cross-compatible with some universal replacement parts, but owners should note the brand before purchasing for a home where parts sourcing might be difficult. For a head-to-head, see the best Swiss Madison toilets guide.

Expert Take

Swiss Madison targets the mid-range modern aesthetic buyer, and the Sublime II delivers on that promise. The 750-gram MaP score is adequate for most households, and the pre-installed slow-close seat and included hardware kit make the unboxing-to-installed experience smoother than many comparable units.

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Bottom Line: The Swiss Madison Sublime II is the strongest value in the modern one-piece skirted category, with a pre-mounted seat, top-flush buttons, and a complete hardware kit ready for DIY installation.
#8
Best Hidden Gem

Gerber Viper Two-Piece Elongated Toilet

4.3 Best for: Buyers who want contractor-grade reliability without a contractor-grade price

Gerber's Viper earns a MaP score of 1,000 grams at 1.28 GPF, matching the Drake and Cadet 3 at the top of the performance chart, while arriving with a two-piece configuration that keeps installation manageable for a solo homeowner.

Flush Volume1.28 GPF
MaP Score1,000 g
Bowl Height16.5" (ADA compliant)
Rough-In12 inches
WaterSenseYes
Pros
  • MaP maximum 1,000-gram score
  • ADA compliant comfort height at 16.5 inches
  • EPA WaterSense certified
  • Gerber's 10-year limited warranty
  • Two-piece split keeps components manageable
Cons
  • Gerber is less well known than TOTO or Kohler among homeowners
  • Retail availability may be limited in some markets

Gerber is a professional-channel brand: it ships extensively to plumbing wholesalers and is specified by contractors, which is why it carries less name recognition than TOTO or American Standard despite equivalent or superior MaP performance. The Viper's 1,000-gram MaP score places it alongside the Drake and Cadet 3 at the ceiling of verified residential gravity-flush performance.

Gerber's 10-year limited warranty is one of the stronger residential toilet warranties available. The Viper ships with a complete hardware kit, and installers report that the tank-to-bowl bolts align correctly without the adjustment common on lower-quality imports. For buyers willing to look beyond the most advertised brands, the Viper is a strong all-around choice.

Expert Take

Plumbers routinely specify Gerber for residential replacements precisely because the quality control and part consistency are predictable. The Viper's MaP maximum score with a WaterSense flush and a 10-year warranty represents exceptional long-term value for a homeowner who does the research before buying.

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Bottom Line: The Gerber Viper combines a perfect MaP score, WaterSense certification, ADA height, and a 10-year warranty in a two-piece package that installs as cleanly as any model on this list.

What makes a toilet easy to install for a DIYer?

A DIY-friendly toilet ships with a complete hardware kit (bolts, washers, wax ring, supply line), includes clear installation instructions with accurate diagrams, fits a standard 12-inch rough-in dimension, and uses a two-piece design to keep individual component weight below 60 lbs. The fewer components the installer has to source separately or align by judgment, the lower the risk of a post-installation leak or return trip to the hardware store.

Is a two-piece toilet easier to install than a one-piece?

Yes, for most DIYers. Two-piece toilets separate the bowl and tank, keeping each component under 60 lbs and manageable for a single adult. One-piece toilets weigh 70 to 100 lbs as a single unit and typically require two people to position safely over the flange. The tradeoff is that two-piece units have a tank-to-bowl gasket connection that must seal correctly, while one-piece units eliminate that connection point at the cost of increased weight.

What tools are required to install a toilet without a plumber?

Standard toilet installation requires an adjustable wrench, a putty knife to scrape the old wax ring, a bucket and sponge to remove residual water from the old bowl, rubber gloves, and a level to confirm the toilet sits flat. No specialized plumbing tools are required. A hacksaw is sometimes needed to trim plastic closet bolts to length after tightening the nuts, and a utility knife may be needed to open packaging or trim a foam gasket on some models.

What is a 12-inch rough-in and why does it matter for installation?

The rough-in is the distance from the finished wall behind the toilet to the center of the floor drain (the flange). The 12-inch rough-in is standard in the vast majority of North American homes built after the 1960s. Buying a toilet designed for a 12-inch rough-in without measuring first is the single most common DIY installation mistake, as a mismatch requires either a different toilet or a flange extension kit. Measure before purchasing.

Does EPA WaterSense certification affect installation difficulty?

No. EPA WaterSense certification confirms that a toilet meets the EPA standard for flushing at least 350 grams of solid waste at 1.28 GPF or less. It addresses water efficiency and minimum flush performance, not installation design. WaterSense-certified toilets install identically to non-certified models. The certification matters for utility rebate eligibility: many water utilities offer rebates of $25 to $100 for replacing older toilets with WaterSense-certified models.

What to Check Before You Buy

Rough-In Measurement

Measure from the center of the floor drain to the finished wall (not the baseboard). Virtually all homes built after 1960 measure 12 inches. Older homes may measure 10 or 14 inches. Every model on this list fits a 12-inch rough-in. If your measurement is different, see our toilet rough-in guide for options.

MaP Score and What It Tells You

MaP testing (Maximum Performance) is an independent protocol conducted by a third-party laboratory. A toilet is tested for how many grams of solid waste simulant it can flush in a single flush at its rated GPF. A score of 1,000 grams indicates the maximum rating and means the toilet cleared the full test load on every test trial. Scores below 500 grams indicate marginal performance for household use. For this guide, every two-piece pick achieves 800 grams or higher.

Expert Take

MaP scores are the only independently verified measure of toilet flushing performance available to consumers. Manufacturer claims like "powerful flush" or "bulk flushing technology" are marketing language; the MaP score is a lab result. Always check the MaP database at map-testing.com before purchasing a toilet you cannot verify through owner reviews.

Hardware Kit Contents

Before purchasing, confirm what the box includes. A complete kit should contain: closet bolts (two), tank-to-bowl bolts with rubber washers and metal nuts (two or three), tank-to-bowl gasket, fill valve, flush valve or flapper, and the toilet seat (or confirm the seat is sold separately). Some budget models ship without a wax ring or supply line, adding cost and a hardware store trip to the project.

One-Piece vs. Two-Piece for DIY

If you are installing alone, a two-piece toilet is the practical choice. The bowl can be set and bolted to the floor first, then the tank added with the installer standing upright rather than maneuvering a 90-lb unit into position. If you have a helper and want the cleaner profile of a one-piece, the Woodbridge T-0001 and Swiss Madison Sublime II both include all required hardware and provide clear enough positioning guides that two-person installation is feasible without prior experience.

Water Efficiency and Utility Rebates

EPA WaterSense certified toilets (1.28 GPF or less) qualify for rebate programs in many utility districts. Rebate amounts range from $25 to $100 per toilet replaced, depending on the utility. Check the EPA's WaterSense rebate finder or your local water utility website before purchasing. Six of the eight models on this list are WaterSense certified. The American Standard Champion 4 is the exception, using 1.6 GPF to support its oversized trapway design.

Bowl Shape: Round vs. Elongated

Elongated bowls extend approximately 2 inches further from the wall than round bowls and are generally considered more comfortable for adults. Round bowls are shorter front-to-back and fit better in tight spaces. For bathrooms under 60 inches in length, measure the distance from the rear wall to the nearest obstacle (door, vanity, tub) before selecting bowl shape. Most models in this guide are available in both configurations.

Frequently Asked Questions

How long does it take to install a toilet yourself?

Most DIYers complete a standard toilet replacement in 60 to 90 minutes. First-timers should budget 90 to 120 minutes. The most time-consuming step is usually removing the old wax ring residue and cleaning the flange before setting the new toilet.

Do I need to hire a plumber to install a toilet?

Not necessarily. A toilet replacement follows a predictable sequence that does not require soldering, cutting pipe, or modifying rough-in plumbing. If the flange is cracked or the floor around it is rotted, those repairs typically require a professional. A straightforward replacement with an intact flange is well within the ability of a motivated beginner.

What is a wax ring and do I need a new one?

A wax ring is a compressible seal between the toilet's horn (the outlet at the bottom of the bowl) and the floor flange. You always need a new wax ring when installing a toilet. The old wax ring is single-use and should be discarded. Some models include a wax ring; for those that do not, a standard wax ring is inexpensive and available at any hardware store.

Can I install a toilet on a tile floor without professional help?

Yes. Tile floors do not change the installation process. If the tile was installed after the original toilet, the flange may sit below the tile surface, which would require a flange extension ring. If the tile is level with or above the flange, a standard wax ring provides sufficient compression to seal correctly.

What happens if I overtighten the toilet bolts?

Overtightening the closet bolts (floor bolts) or tank-to-bowl bolts can crack the vitreous china at the bolt holes. Tighten bolts only until the toilet is snug and does not rock. The standard guidance is hand-tight plus a quarter turn with a wrench. If the toilet rocks slightly after initial tightening, add plastic shims under the base before tightening further.

Does the toilet seat come included with these models?

It depends on the specific SKU and configuration. TOTO typically sells the seat separately for Drake and Entrada models. American Standard Cadet 3 and Champion 4 configurations often include a seat, but this varies by retailer bundle. The Woodbridge T-0001 and Swiss Madison Sublime II both include a slow-close seat in the box. Always verify seat inclusion before purchasing.

What is a MaP score and what score should I look for?

MaP (Maximum Performance) testing is an independent laboratory protocol that measures how many grams of solid waste a toilet can flush in a single flush. A score of 1,000 grams is the maximum. For a household bathroom, look for a MaP score of 600 grams or higher; for a high-traffic or family bathroom, 800 grams or higher is recommended. All models on this list score 750 grams or above.

What does EPA WaterSense certification mean for a toilet?

EPA WaterSense certification confirms that a toilet uses no more than 1.28 gallons per flush and achieves at least a 350-gram MaP score. WaterSense toilets use approximately 20 percent less water than the federal 1.6 GPF standard. The certification also qualifies the toilet for utility rebate programs in many states and municipalities.

What is a comfort height toilet and should I choose one?

Comfort height (also called ADA height or chair height) describes a toilet with a seat height between 16 and 18 inches from the floor, compared to 14 to 15 inches for standard height. The taller bowl is easier to sit down to and rise from, particularly for taller adults, those with knee or hip problems, and older adults. Most models on this list are available in comfort height configurations.

Can I reuse the supply line from my old toilet?

It is not recommended. Supply lines deteriorate over time and a hairline crack in a braided stainless line can fail catastrophically. Supply lines are inexpensive. Replace the supply line when installing a new toilet. Use a braided stainless steel line rated for toilet use; standard lengths are 12 inches, 16 inches, and 20 inches from the wall shutoff valve to the fill valve inlet.

How do I know if my toilet flange needs to be replaced before I install a new toilet?

After removing the old toilet, inspect the flange. Look for cracks across the collar, broken mounting ears where the closet bolts seat, and corrosion in cast-iron flanges. If any bolts pull through the slot or the flange rings crumble when you touch them, replace the flange before setting the new toilet. A cracked or broken flange will prevent a proper wax ring seal regardless of the toilet quality.

What should I do if the toilet rocks after installation?

A rocking toilet means the base is not sitting flat on the floor. Insert plastic toilet shims (available at hardware stores) under the base at the point of movement until the toilet is stable, then tighten the closet bolts snugly. Do not attempt to stabilize the toilet by over-tightening the bolts, as this risks cracking the porcelain. After shimming, caulk the base perimeter, leaving a small gap at the rear to allow leak detection.

Is it safe to caulk around the base of a new toilet?

Caulking is recommended but should leave a small unsealed section at the rear of the base. A fully sealed base hides leaks at the wax ring, which can cause floor rot before they are detected. Leave the rear quarter-inch uncaulked so that a wax ring failure would become visible as water escaping at the base rather than wicking under the floor silently.

Can I install a toilet by myself or do I need a helper?

For a two-piece toilet, a solo install is practical. Set and bolt the bowl first, then lift the tank (typically 20 to 30 lbs) onto the bowl and connect the tank bolts. For a one-piece toilet weighing 70 to 100 lbs, a helper is strongly recommended to position the unit safely over the closet bolts without dropping it or missing the flange.

What rough-in sizes are available and how do I measure mine?

The three standard rough-in sizes in North American plumbing are 10 inches, 12 inches, and 14 inches. To measure, use a tape measure from the center of the floor drain (flange) to the finished wall behind the toilet (not the baseboard trim). The vast majority of post-1960 homes measure 12 inches. All models on this list are designed for a 12-inch rough-in.

Are there toilets that install faster because of tool-free or snap-connect systems?

Yes. American Standard's Speed Connect system on the Champion 4 uses a coupling and three bolts to attach the tank to the bowl with less alignment difficulty than traditional two-bolt designs. TOTO models pre-thread the tank bolts through the tank gasket, reducing fumbling during assembly. These are not tool-free systems, but they reduce the steps where misalignment causes leaks.

What brand of toilet is the most reliable long-term?

TOTO, Kohler, and American Standard have the longest published track records in the North American market and carry the most extensive parts networks for replacement components. Gerber carries a 10-year limited warranty and is a preferred contractor brand for reliability. Swiss Madison and Woodbridge are newer market entrants with growing owner review datasets but shorter long-term track records than the legacy brands.

How do I dispose of my old toilet?

Many municipalities accept old toilets at bulk waste or construction debris drop-off sites. Some water utilities offer haul-away as part of a toilet rebate program. Habitat for Humanity ReStores sometimes accept working toilets for resale. If none of these options apply, a toilet counts as porcelain and can typically be placed at the curb on bulk pickup days, but confirm with your local waste management service first.

Do I need a permit to replace a toilet?

In most jurisdictions, replacing a toilet with a new toilet in the same location (a like-for-like replacement using the existing flange) does not require a permit. Moving the toilet to a new position, adding a new rough-in, or modifying drain lines typically does require a permit. Confirm with your local building department if you are unsure about your specific project.

Sources

  • EPA WaterSense, epa.gov/watersense
  • MaP flush testing, map-testing.com
  • Manufacturer published specifications
  • American Standard product documentation
  • TOTO USA installation literature
  • Kohler Co. product specifications
  • Woodbridge and Swiss Madison published product data
  • Gerber Plumbing Fixtures specification sheets

Our Verdict

For most DIYers, the TOTO Drake Two-Piece is the clearest choice: it combines a MaP-maximum 1,000-gram flush with TOTO's well-documented installation instructions, a split tank-and-bowl design that keeps both pieces manageable, and EPA WaterSense certification at 1.28 GPF. Budget buyers should consider the American Standard Cadet 3 for equivalent flushing performance at a lower price. Clog-prone households get the most from the American Standard Champion 4, while homeowners remodeling for aesthetics will find the Woodbridge T-0001 or Swiss Madison Sublime II deliver a clean modern profile with fewer installation steps than a conventional two-piece.

How we rank & our data sources

We do not run physical lab tests. Rankings are built from published, verifiable data and real owner feedback, never paid placement.

Researched by Marcus Bell · Last updated June 28, 2026 · Our review method

M
Researched by Marcus Bell

Marcus compiles bathroom-fixture data, MaP flush scores, GPF ratings, trapway and flush-valve specs, and weighs them against thousands of verified owner reviews to build our rankings. He does not run physical lab tests; every verdict is sourced from published specifications, certifications (MaP, EPA WaterSense) and real owner feedback.

Updated June 2026 · Toilets
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